#include<stdio.h>
#include<string.h>
int main()
{
	char arr1[] = "hello world";
	char arr2[] = "###########";
	int left = 0;
	int right = strlen(arr1)- 1;
	printf("%s\n", arr2);
	while (left <= right)
	{
		Sleep(1000);
		arr2[left] = arr1[left];
		arr2[right] = arr1[right];
		left++;
		right--;
		system("cls");
		printf("%s\n", arr2);
		

	}


	return 0;

}